package com.hqd.ch03.v50.boot;

import com.hqd.ch03.v50.boot.ansi.AnsiColor;
import com.hqd.ch03.v50.boot.ansi.AnsiOutput;
import com.hqd.ch03.v50.boot.ansi.AnsiStyle;
import com.hqd.ch03.v50.core.env.Environment;

import java.io.PrintStream;

class SpringBootBanner implements Banner {

    private static final String[] BANNER = {"", "  .   ____          _            __ _ _",
            " /\\\\ / ___'_ __ _ _(_)_ __  __ _ \\ \\ \\ \\", "( ( )\\___ | '_ | '_| | '_ \\/ _` | \\ \\ \\ \\",
            " \\\\/  ___)| |_)| | | | | || (_| |  ) ) ) )", "  '  |____| .__|_| |_|_| |_\\__, | / / / /",
            " =========|_|==============|___/=/_/_/_/"};

    private static final String SPRING_BOOT = " :: Spring Boot :: ";

    private static final int STRAP_LINE_SIZE = 42;

    @Override
    public void printBanner(Environment environment, Class<?> sourceClass, PrintStream printStream) {
        for (String line : BANNER) {
            printStream.println(line);
        }
        String version = SpringBootVersion.getVersion();
        version = (version != null) ? " (v" + version + ")" : "";
        StringBuilder padding = new StringBuilder();
        while (padding.length() < STRAP_LINE_SIZE - (version.length() + SPRING_BOOT.length())) {
            padding.append(" ");
        }

        printStream.println(AnsiOutput.toString(AnsiColor.GREEN, SPRING_BOOT, AnsiColor.DEFAULT, padding.toString(),
                AnsiStyle.FAINT, version));
        printStream.println();
    }

}
